Solve.A farmer's silo is the shape of a cylinder with a hemisphere as the roof. If the height of the silo is 113 feet and the radius of the hemisphere is r feet, express the volume of the silo as a function of r.
A. V(r) = ?(113 - r)r3 + 
?r2
B. V(r) = ?(113 - r)r2 + 
?r3
C. V(r) = ?(113 - r) + 
?r2
D. V(r) = 113?r2 + 
?r3
Answer: B
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Determine whether the growth (or decay) is linear or exponential, and answer the associated question.The price of a gallon of gasoline is increasing by 5¢ per week. If the price is $3.08 per gallon today, what will it be in ten weeks?
A. Exponential; $3.24 B. Linear; $3.53 C. Exponential; $5.02 D. Linear; $3.58
Find é in the parallel circuit below if R = 890 ê, C = 0.002 æF, f = 9 KHz, and E = 20 V.
a. é = 71.8ø
b. é = 36.2ø
c. é = 25.7ø
d. é = -5.7ø
e. é = 84.3ø
Find the difference.
- 
A. 
B. 
C. 
D. 
Find the volume of the solid of revolution obtained by revolving the region bounded by the graphs of the given functions about the x-axis.
?
, 
, and 
?
Hint: You will need to evaluate two integrals.
What will be an ideal response?